Ever wondered what to do with your NES that's at the back of the wardrobe? If you have, here's some handy tips on cleaning the aged console, replacing the 72 connector pins and modding the controllers.
GamesRadar's put together a lengthy walkthrough that covers topics such as How to clean your NES cartridges, How to clean your NES console and replace the 72-pin connector, How to take your NES apart and How to make a USB NES game controller. They look like they know what they're doing as well.
Chances are your warranty's out of date by now, so if it's sat in a dark corner of the attic wasting away, now (or the Christmas holidays) might be the perfect time to put the sparkle back into your retro gaming.